Method and system for mounting lasers on energy assisted magnetic recording heads
AssigneeWestern Digital (Fremont), LLC
InventorsLei Wang, Shing Lee
Life of this patent
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Abstract
A method and system for providing energy assisted magnetic recording (EAMR) heads including EAMR transducers are described. The method and system include aligning a laser bar to the EAMR heads on a substrate. The laser bar includes lasers in locations corresponding to a portion of the EAMR transducers. The method and system also include bonding the laser bar to the substrate and removing a portion of the laser bar to separate the plurality of lasers. The substrate is separated into the EAMR heads.
Claims18
A method for providing a plurality of energy assisted magnetic recording (EAMR) heads including a plurality of EAMR transducers, the method comprising:
- aligning a laser bar to the plurality of EAMR heads on a substrate, the laser bar including a plurality of lasers in locations corresponding to a portion of the plurality of EAMR transducers;
- bonding the laser bar to the substrate;
- removing a portion of the laser bar to separate the plurality of lasers;
- separating the substrate into the plurality of EAMR heads.
A method for providing a plurality of energy assisted magnetic recording (EAMR) heads comprising:
- providing metallization and at least one alignment mark on a wafer including a plurality of plurality of laser bars, each of the plurality of laser bars including a plurality of lasers, a plurality of edges, a top side, and a bottom side, the metallization and at least one alignment mark residing on the bottom side;
- cleaving a wafer to provide the plurality of laser bars providing an antireflective coating on at least one of the plurality of edges of each of the plurality of laser bars;
- providing a high reflective coating on at least another of the plurality of edges of each of the plurality of laser bars;
- passively aligning each of the plurality of laser bars to a portion of the plurality of EAMR heads on a substrate using the alignment marks, the plurality of lasers in locations corresponding to a portion of the plurality of EAMR transducers;
- bonding the bottom of each of the plurality of laser bars to the substrate;
- thinning the plurality of laser bars;
- removing a portion of the each of the plurality of laser bars to separate the plurality of lasers using at least one of dicing and etching through the plurality of laser bars;
- enclosing each of the plurality of lasers;
- and
- separating the substrate into the plurality of EAMR heads.
Dependencies are inferred from the claim text.